Has anyone installed the X Monitor pyro probe post-turbo without welding on the fitting supplied by BD? The downpipe is a casting, is it too thin to be drilled and tapped by itself? The main purpose of my pyro is to monitor cool down temps. I'm leaving the engine stock and am not interested in a pre-turbo mounting. I'd also like to get by without taking my downpipe to a welding shop although I will if I have to. Thanks...